net: fix __dst_destroy_metrics_generic()
authorEric Dumazet <eric.dumazet@gmail.com>
Tue, 24 May 2011 17:29:50 +0000 (13:29 -0400)
committerDavid S. Miller <davem@davemloft.net>
Tue, 24 May 2011 17:29:50 +0000 (13:29 -0400)
dst_default_metrics is readonly, we dont want to kfree() it later.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/core/dst.c

index 81a4fa1c95ed32a266ef503b796ee998f4599a1d..9ccca038444f11fda683bbed8bf56ad0d5e1b65e 100644 (file)
@@ -315,7 +315,7 @@ void __dst_destroy_metrics_generic(struct dst_entry *dst, unsigned long old)
 {
        unsigned long prev, new;
 
-       new = (unsigned long) dst_default_metrics;
+       new = ((unsigned long) dst_default_metrics) | DST_METRICS_READ_ONLY;
        prev = cmpxchg(&dst->_metrics, old, new);
        if (prev == old)
                kfree(__DST_METRICS_PTR(old));